Invention Grant
- Patent Title: Electrohydraulic pilot control with two pressure control valves
- Patent Title (中): 电液先导控制带两个压力控制阀
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Application No.: US14350841Application Date: 2012-10-09
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Publication No.: US09534702B2Publication Date: 2017-01-03
- Inventor: Jürgen Schonlau , Jens Krallmann , Harald Geis , Marc Leinweber , Thomas Zastrau , René Schulz
- Applicant: THOMAS MAGNETE GmbH
- Applicant Address: DE Herdorf
- Assignee: Thomas Magnete GmbH
- Current Assignee: Thomas Magnete GmbH
- Current Assignee Address: DE Herdorf
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: DE102011116176 20111014
- International Application: PCT/EP2012/004216 WO 20121009
- International Announcement: WO2013/053458 WO 20130418
- Main IPC: F16K31/08
- IPC: F16K31/08 ; F16K27/00 ; F16K31/06 ; F16K27/04 ; F16K15/06

Abstract:
Electrohydraulic pilot control means (1) for a hydraulic device which can be a proportional directional valve, an adjusting pump or an adjusting motor, which pilot control means contains two proportionally acting pressure control valves (3) and is provided with a control block (2) which accommodates the hydraulic valve parts (4) in holes and to which the associated proportional magnets are flange-connected, wherein the proportional magnets have a common electrical plug connection (5) and wherein the two proportional magnets (3) are joined to form an assembly by being encapsulated with plastic, the said assembly being fastened to the control block (2) and, in this case, being precisely oriented relative to the valve components (4), which are accommodated in the control block, by means of positioning aids which act perpendicular to the movement direction of armatures.
Public/Granted literature
- US20140345701A1 ELECTROHYDRAULIC PILOT CONTROL WITH TWO PRESSURE CONTROL VALVES Public/Granted day:2014-11-27
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